See Also Examples Applies To
Returns the number of available values for the selected TWAIN capability which can be used with it by the opened source in its current configuration.
Syntax
object.TwainGetAvailableCapValuesCount (nCap)
The TwainGetAvailableCapValuesCount syntax has these parts:
| Part | Description |
| object | Required. An object expression that evaluates to an object in the Applies To list. |
| nCap | Required. Long A TWAIN capability constant. |
Returns
Long. If Success, non zéro: Number of values available for the selected TWAIN capability. Else 0 if fail -> Use TwainGetLastResultCode() and TwainGetLastConditionCode() functions for diagnosing the error.
Remarks
Before using this function check that the TWAIN state is >= 4 (TWAIN_SOURCE_OPEN)
To get the TWAIN state, use the TwainGetState() function.
Category
TWAIN Functions